TY - JOUR TI - Mixture of Metrics Optimization for Machine Learning Problems AU - Wiercioch, Magdalena AU - Śmieja, Marek TI - Mixture of Metrics Optimization for Machine Learning Problems AB - The selection of data representation and metric for a given data set is one of the most crucial problems in machine learning since it affects the results of classification and clustering methods. In this paper we investigate how to combine a various data representations and metrics into a single function which better reflects the relationships between data set elements than a single representation-metric pair. Our approach relies on optimizing a linear combination of selected distance measures with use of least square approximation. The application of our method for classification and clustering of chemical compounds seems to increase the accuracy of these methods. VL - 2015 IS - Volume 24 PY - 2016 SN - 1732-3916 C1 - 2083-8476 SP - 83 EP - 92 DO - 10.4467/20838476SI.15.008.3030 UR - https://ejournals.eu/en/journal/schedae-informaticae/article/mixture-of-metrics-optimization-for-machine-learning-problems KW - metric learning KW - classification KW - clustering KW - chemical compound activity KW - fingerprint